resize-while-content-visibility-hidden.html

<!doctype html>
<html class="reftest-wait">
<title>CSS Container Queries Test: condition change while content-visibility: hidden</title>
<link rel="help" href="https://drafts.csswg.org/css-conditional-5/#container-queries">
<link rel="help" href="https://drafts.csswg.org/css-contain-2/#content-visibility">
<link rel="author" title="Vladimir Levin" href="mailto:[email protected]">
<link rel="match" href="resize-while-content-visibility-hidden-ref.html">
<link rel="assert" content="Container query applies even if container is content-visibility: hidden">

<script src="/common/reftest-wait.js"></script>

<style>
#container {
  container-name: container;
  container-type: size;
  width: 300px;
  height: 300px;
}

#child {
  width: 200px;
  height: 200px;
  background: red;
}

#container.wide { width: 500px; }
.locked { content-visibility: hidden; }

@container container (min-width: 400px) { #child { background: green; } }
</style>

<div id=container>
  <div id=child></div>
</div>

<script>
async function runTest() {
  await new Promise(requestAnimationFrame);
  container.classList.add("locked");

  await new Promise(requestAnimationFrame);
  container.classList.add("wide");

  await new Promise(requestAnimationFrame);
  container.classList.remove("locked");

  await new Promise(requestAnimationFrame);
  takeScreenshot();
}

requestAnimationFrame(() => { requestAnimationFrame(() => runTest()) });

</script>

chromium/third_party/blink/web_tests/external/wpt/css/css-conditional/container-queries/resize-while-content-visibility-hidden.html